Skin Integrity & Wound Care Flashcards
what are some functions of the skin?
protection body temperature psychosocial sensation vitamin d production immunologic absorption elimination
what are some factors effecting the skin?
unbroken/healthy skin and intact mucous membranes (defense)
resistance to injury affected by age and illness
adequate nourished and hydrated tissue cells are resistance to injury
adequate circulation is necessary to cell life
what are some developmental considerations for the skin?
infants have weak mucous membranes hat are easily injured
kids younger than 2 have thinner and weaker skin than adults
the structure of the skin changes with age leading to thin easily damaged skin
circulation and collagen formation are impaired leading the decreased elasticity
name the different types of wounds
intentional or unintentional
open or closed
acute or chronic
partial thickness, full-thickness, and complex
define: open and closed wounds
open: complete break of epithelial protective surface (abrasions, lacerations, de-gloving etc.)
closed: skin is intact with underlying tissue damage (contusions, bruises, hematomas)
define: acute and chronic wounds
acute: they pass through the normal healing process slowly and consist of: lacerations, cuts, abrasions, punctures etc.
chronic: any wound >3 months old consisting of: anything failing to undergo the normal healing process
what are the phases of wound healing?
hemostasis
inflammatory
proliferation
maturation
what is hemostasis?
it occurs immediately post initial injury and involves blood vessels which constrict and begin clotting.
exudate is formed causing swelling and pain.
platelets stimulate other cells to migrate to the site of injury for further phases of healing
what is the inflammatory phase?
this occurs after hemostasis and lasts 2-3 days. WBC’s (leukocytes and macrophages) move to the wound site to ingest the remaining debris and to attract fibroblasts to fill in the wound
what is the proliferation phase?
it lasts for several weeks and is when new tissue is built to fill in the wound via the fibroblasts. capillaries grow across the wound and a thin layer of epithelial cells form. granulation tissue forms the foundation for scar tissue.
what are some local factors affecting wound healing?
pressure desiccation maceration trauma edema infection excessive bleeding necrosis presence of biofilms
what are the types of wound complications?
infections
hemorrhage
dehiscence and evisceration
fistula formation
what are the psychological effects of wounds?
pain anxiety fear impact on ADLs change in body image
what are the factors leading to pressure injury development?
aging skin chronic illness immobility malnutrition fecal and urinary incontinence altered level of consciousness spinal cord and brain injuries neuromuscular disorders
what are the 2 mechanisms in pressure injury development?
external pressure compressing the blood vessels
friction or shearing forces that tear/injure blood vessels